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. Author manuscript; available in PMC: 2020 Jul 1.
Published in final edited form as: J Magn Reson Imaging. 2019 Dec 18;52(1):117–128. doi: 10.1002/jmri.27004

TABLE 3.

RRMSE for Steady Flow (130 mL/s) Data Acquired With 4D Spiral Flow (Eq. 2)

Scan High Venc (cm/s) Low Venc (cm/s) RRMSE (%) VNR
Dual Venc 400 250 9.63 13.3/18.0
600 250 14.18 10.8/19.1
800 250 16.52 9.0/18.4
Single Venc 400 17.60 13.0
600 17.67 11.0
800 19.43 8.8

The Qinlet, from Eq. 2, in this case is the Low Venc acquisition with Cartesian 4D flow measured for the first slice and averaged over time to reduce noise. VNR was calculated via Eq. 3, and in the case of Dual Venc in the table, the high Venc VNR is shown first and the low Venc VNR is shown second.